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Denitrification water treatment agent

A treatment agent and nitrified water technology, applied in the field of water treatment agent and denitrification water treatment agent, can solve problems such as affecting drinking water safety, and achieve the effects of wide adaptability, simple process and easy engineering.

Inactive Publication Date: 2014-04-02
TIANAN BIOLOGIC MATERIAL NINGBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Total nitrogen includes nitrate, nitrite, ammonia nitrogen and organic nitrogen, etc. Nitrogen-containing compounds will promote the proliferation of aquatic organisms and lead to eutrophication of water bodies. Nitrate and nitrite can also be converted into carcinogenic nitrosamines. Affect drinking water safety

Method used

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  • Denitrification water treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Mix 50g of aluminum hydroxide, 450g of polyhydroxybutyrate (PHB), 450g of polyhydroxybutyrate valerate (PHBV), and 50g of natural degradable organic matter, extrude and pelletize in a twin-screw extruder at 140°C , to obtain denitrification water treatment agent.

Embodiment 2

[0028] Mix 300g of aluminum hydroxide, 500g of polyhydroxybutyrate (PHB), and 200g of natural degradable organic matter evenly, extrude and pelletize in a twin-screw extruder at 150°C to obtain a denitrifying water treatment agent.

Embodiment 3

[0030] Mix 150g of ferric hydroxide, 550g of polyhydroxybutyrate (PHB), and 300g of natural degradable organic matter evenly, extrude and pelletize in a twin-screw extruder at 140°C to obtain a denitrifying water treatment agent.

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PUM

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Abstract

The invention discloses a denitrification water treatment agent. The agent is a mixture of an inorganic substance, a biosynthesis high-molecular polymer and a natural degradable organic matter, wherein the contents of the inorganic substance, the biosynthesis high-molecular polymer and the natural degradable organic matter are, on the basis of weight, 5 to 30%, 50 to 90% and 5 to 30%, respectively. The denitrification water treatment agent provided by the invention can remove nitrite and nitrate in water at a temperature of 5 to 35 DEG C, has a wide adaptive temperature range in the process of a denitrification reaction and even can well realize a denitrification reaction at a temperature of 5 to 10 DEG C.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and relates to a water treatment agent, in particular to a denitrification water treatment agent. Background technique [0002] According to the "China Environmental Quality Bulletin" in 2009, among the 26 nationally controlled key lakes (reservoirs), there are 9 lakes (reservoirs) with inferior V water quality, accounting for 34.6%. Among them, the water quality of Taihu Lake and Dianchi Lake is generally inferior to V category, and the water quality of Chaohu Lake is generally V category. Excessive total nitrogen is a prominent feature of them. Total nitrogen includes nitrate, nitrite, ammonia nitrogen and organic nitrogen, etc. Nitrogen-containing compounds will promote the proliferation of aquatic organisms and lead to eutrophication of water bodies. Nitrate and nitrite can also be converted into carcinogenic nitrosamines. Affect drinking water safety [0003] In recent years, ...

Claims

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Application Information

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IPC IPC(8): C02F3/28
Inventor 沈华凌东鹰陈学军李佳灵
Owner TIANAN BIOLOGIC MATERIAL NINGBO
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